Supplemental tire.



L. ZEMAN.

SUPPLEMENTAL TIRE.

APPLICATION FILED 11911.11, 191s.

Patented Aug. 25, 1914.

i ll w INVENTOR ATTORNEYS ltl rlri lijl ltll @Flhlitld LQUIS ZE'M'AN, 0'5 .TGBIAS, NEBRASKA.

snrrnnmnnran which the following is a specification.

My invention relates to improven'ients in supplemental tires for wheels of wagons or other vehicles except such as run on rails or are equipped with pneumatic tires.

An object of the invention is to provide a supplemental tire which may be readily attached to or removed from the wheel and which i rovided with a. call; for preventing the skidding of the-vehicle on slippery reads.

A further object of my invention is to provide a simple device of the type mentioned which may be firmly secured to the wheel by anovel form of tightening device.

Other objects and advantages will appear in the following specification and the novelfeatures of the device will be particularly pointed out in the appended claim.

My invention is illustrated in the accompanying drawings forming part of this application in which Fignre l is a side view of a portion of a Wheel provided with an anti-skidding supplemental tire, Fig. 2 is an enlarged section on the line 2-2 of Fig. 1, Fig. 3 is a perspective view'otone of the wedges, Fig. 4 is av view of a modified form of the tightening means, and Fig! a sectional View along the line 5-5 of Fig. i. I The demountable' anti-sl id supplemental tire may be applied to an ordinary wagon wheel having a steel or iron tire Such a wheel is shown in Fig. 1. denotes the hub of the wheel, 2 the spokes, and 3 the telly. The metal tire is shown at e. lIhe supplemental tire consists of a metal band 5 preferably made of hard iron, or mild steel in circular form, the hand being split as shown at 6 so as to permit it to he placed over the wheel. The band 5 is preferably provided with integral lugs (3 which are cut or stamped from theinaterial of which the band is made, and are bent at right angles thereto so as to engage the side of the telly and tire in the manner shown in Fig. 1'. The lugs 6 prevent the lateral displacement Of the rim.

Adjacent to the split portion are integral flanges such as those shown at 7. 'llhese Specification of Letters Patent.

. In this figure l.-

llatentrd ding. $151 llllel.

Application filed April 11, 1913. Serial No. 760,415.

flanges have extensions arranged to receive bolts 8 which pass through the extensions on the opposite side and which are provided with nuts 9.

Disposed between the opposed flanges 7 are wedges of the shape shown'in Fig 3. These consist of a base portion 10, a laterally extending integral portion 1O provided with an elongated slot 10 and inclined side members 10 A bolt 11 is arranged to extend through the slots of the opposed wedges as shown in Fig. 1.

Riveted or otherwise secured at one edge of the rim 5 is a calk 12 as shown in Fig. 2.

In the present instance I have shown this calk as extending around the rim thus forming a circular continuous member, and being split at 6", but it may be made in sections without departing from the spirit of the'invention.

From the foregoing description of the various parts of the device the operation thereof may be readily understood.

In applying the supplemental tire it is slipped over the wheel the wedges are placed in the position shown in Fig. 1, and the halt 11 is tightened, thus forcing the inclined smrtace 10 of the wedges against the bolts 8, thereby drawing together the ends of the split tire. The rim is thus drawnclose to the tire of the wheel so that there is no danger of the rim slipping around the wheel.

In Figs. at and 5 1 have shown a modified. form of tightening device. in this form the tire 5 is provided at its ends with integral arms or flanges 13, the flanges on one endof the the anges on'the other end. lolts .l-Ll; are, provided which secure the ends oi these arms or flanges 13 together. The bolls Llare provided with central nuts 1-: arranged re ceive bolls ll). The ends of the latter bear upon plates l? which are curved to lit around a spoke 2 and which have integral bearing plates 17 arranged to bear on the inner side of th telly 3. A shown in 4 each plate 1? is slightly rcressed so as to provide a socket forthc end of the bolt 16. The rim 5 is securedto the wheel by tightening the holts lo, thus drmving the ends of the tire together and firmly securing the tire to the sl plit tire being arraiigzed to pass between i combination with a wheel having a Nil 5 of said split band, bolts for securing together lVitnesses:

i supplemental tire comprising a split band having inclined surfaces arranged to engage arranged 'to engage the tire and having insnid bolts, and a tightening bolt for forcing tegral lugs extending on each side of said said Wedges together. felly, integral flanges disposed at the ends LOUIS ZEMAN.

the end flanges on opposite sides of the fel1y,- ADAM BUCHER,

Wedges disposed between the end flanges and CHARLES SLIGHT. 

